| Business | Phone |
| Newport Sales Of Chicago 2400 E Devon Ave, Des Plaines 60018 | (847) 635-9901 |
| Major Pharmaceutical 10700 W Higgins Rd 100, Des Plaines 60018 | (847) 803-3560 |
| Quest International 10600 W Higgins Rd 600, Des Plaines 60018 | (847) 390-8250 |
| Ppd Des Plaines 60016 | (847) 297-6655 |
| Janco Distributors 2400 E Devon Ave, Des Plaines 60018 | (847) 299-5100 |
| Sano Fi Pharmaceuticals 200 E Oakton St, Des Plaines 60018 | (847) 298-9087 |